Cool background as ever but I dont like the city lights on that planet, they are too clean cut and neat and dont really do the planets curvature any favours they make it look flat. Also something that works quite well for me is using a contrasting blue light when red light or a yellow light is used, a blue flare or haze around the light source can give it a quite nice effect, might be something to mess around with later on perhaps.
Yup - next time - I know about the blue color in the warm surroundings effect but it usualy makes the image less realistic - more like a simple painting (like in my Zenith [link] or Evac [link] ) but on the other hand it might look good. Those city scape circles almost allways look flat (trust me - even in your pieces ) - I still need to find some really working technique for this. I'll see what I can adjust but now I'm working on something that (finally, after a year) I wanted to re-create (technically). Thank you a lot for the input - I appreciate it (it isn't that form "it sucks, remove it").
Well it doesnt suck so dont remove it haha, anyway yeah the circle thing is hard to do, maybe using a 3D software package might work. But as for the blue light thing it should make the image look more realistic as in reality the flare from a light is often of the oposite colour, but not always.
I love this everything in this piece except the abrubt ending citylights/lavacircles on the planet. On the other hand taking it away could make the piece more boring. I would replace it with something of the same style, but smoother.